What is the soil temperature in ZIP code 82620 today?

About 44°F on average in the top 4 inches (0–10 cm), low 39°F and high 51°F, from NOAA's GFS model run of Nov 11, 12:00 UTC (7 am Eastern). It is a model value for a grid cell 6.8 km from the ZIP centre, not a reading from your yard.

Is it time for crabgrass preventer in 82620?

The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 21 and 55°F from May 25.

ZIP 82620 · Wyoming · Nov 11, 2026

Soil temperature for ZIP code 82620

44°Faverage today, 0–4 in deep (modelled)
low 39°F · high 51°F

Modelled by NOAA GFS, not measured · run Nov 11, 12:00 UTC (7 am Eastern) · grid cell 6.8 km from the ZIP centre point

On a week ago

2° warmer

42°F on Nov 4

5-day mean

44°F

what the verdicts use

Held 55°F last spring

May 25

crabgrass germination temperature

What the soil says today

Pre-emergentSeason over
Cool-season seedToo late in the season
Warm-season seedToo cold
TomatoesToo cold
Peas and lettuceWarm enough

From the 5-day mean of the modelled 0–4 in layer.

Soil temperature, 0–4 in: last 7 days and next 7

°F, modelled. Dots and line: daily average (dashed = forecast); bars: low to high; green band: 50–55°F.

View as table

Day	Average	Low	High
Nov 4	41.9°F	37.2°F	47.4°F	analysis
Nov 5	42.2°F	36.8°F	49.2°F	analysis
Nov 6	44.3°F	39.9°F	50.4°F	analysis
Nov 7	42.7°F	37.5°F	48.9°F	analysis
Nov 8	43.6°F	38.2°F	51.0°F	analysis
Nov 9	45.8°F	40.7°F	52.8°F	analysis
Nov 10	45.5°F	40.6°F	51.5°F	analysis
Today	44.3°F	39.3°F	50.7°F	analysis
Nov 12	45.1°F	39.7°F	52.1°F	forecast
Nov 13	44.0°F	39.3°F	49.3°F	forecast
Nov 14	44.7°F	40.6°F	50.3°F	forecast
Nov 15	43.1°F	39.1°F	47.2°F	forecast
Nov 16	41.4°F	37.0°F	46.7°F	forecast
Nov 17	42.5°F	37.5°F	49.0°F	forecast

Source: NOAA NCEP GFS 0.25°, 0–10 cm soil temperature, run Nov 11, 12:00 UTC (7 am Eastern).

Spring 2026 threshold dates

From the 5-day mean held for 10 days or more.

Soil	What it means	Held from (spring 2026)
40°F	Peas and lettuce	Feb 28
50°F	Pre-emergent window opens	Mar 21
55°F	Crabgrass can germinate	May 25
60°F	Tomatoes	May 27
65°F	Warm-season grass seed	May 29

Casper, WY, 71 km away: the full city page, with the 2026 season chart, growing degree days and nearby cities →

This ZIP code area covers about 410 square miles; the reading is for the model grid cell nearest its Census centre point, which can be far from where you are. Try a neighbouring ZIP if it looks off.

Nearby ZIP codes

Today's modelled average.

82604 47°F · 82322 41°F · 82646 47°F · 82327 43°F · 82638 46°F · 82648 47°F · 82310 43°F · 82630 43°F

More: crabgrass timing in Wyoming · every Wyoming city · how accurate the model is.

Questions

What is the soil temperature in ZIP code 82620 today?: About 44°F on average in the top 4 inches (0–10 cm), low 39°F and high 51°F, from NOAA's GFS model run of Nov 11, 12:00 UTC (7 am Eastern). It is a model value for a grid cell 6.8 km from the ZIP centre, not a reading from your yard.
Is it time for crabgrass preventer in 82620?: The spring window is closed. It opens again when the soil holds 50°F. Last spring the soil held 50°F from Mar 21 and 55°F from May 25.

Data: Global Forecast System (GFS) 0.25°, soil temperature 0–10 cm (TSOIL) (NOAA National Centers for Environmental Prediction (NCEP)); 2025 Gazetteer ZIP Code Tabulation Areas (ZCTA) and 2024 cartographic boundary state outlines (U.S. Census Bureau).